- remove misplaced comment

toolchain/gcc/gcc-uclibc-4.x.mk

@@ -54,7 +54,7 @@ GCC_SOURCE:=gcc-$(GCC_OFFICIAL_VER).tar.bz2
 GCC_DIR:=$(TOOL_BUILD_DIR)/gcc-$(GCC_OFFICIAL_VER)
 GCC_CAT:=$(BZCAT)
 GCC_STRIP_HOST_BINARIES:=nope
-GCC_SRC_DIR=$(GCC_DIR) # for stage2 and stage3 compilers. Usually same as stage1
+GCC_SRC_DIR:=$(GCC_DIR)
 
 ifeq ($(findstring x3.,x$(GCC_VERSION)),x3.)
 GCC_NO_MPFR:=y